Mechanical characteristics of soil-rock mixtures containing macropore structure based on 3D modeling technology

doi:10.1007/s11629-020-5937-2

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2020 > Vol17 No.9

	Mechanical characteristics of soil-rock mixtures containing macropore structure based on 3D modeling technology
	Liu, Yong; Sun, Shao-rui; Wei, Ji-hong; Song, Jing-lei; Yu, Yong-xiang; He, Wei; Zhang, Ji-xing
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2020
卷号	17 期号:9 页码:2224-2240
关键词	Soil rock mixtures Macropore structure Mechanical characteristics Discrete element method Shear band
ISSN号	1672-6316
DOI	10.1007/s11629-020-5937-2
文献子类	Article
英文摘要	Soil-rock mixtures containing macropore (SRMCM) is a kind of geological material with special mechanical properties. Located in the project area of Lenggu hydropower station on the Yalong River, Sichuan Province, China, there is an extremely unstable Mahe talus slide with a total volume of nearly 160 million cubic meters, which is mainly composed of SRMCM. The study on the mechanical properties of SRMCM is of great significance for the engineering construction and safe operation. In this paper, laboratory tests and discrete element numerical tests based on three-dimensional scanning technology were conducted to study the influence of stone content, stone size, and the angle of the macropore structure on shear characteristics of SRMCM. The failure mechanism of SRMCM was discussed from a microscopic perspective. This work explains the internal mechanism of the influence of stone content, stone size, and the angle of the macropore structure on the strength of SRMCM through the microscopic level of stone rotation, force chain distribution, and crack propagation. As the macropore structure that intersects with the preset shear plane at a large angle could act as a skeleton-like support to resist the shear force, the fracture of the weak cemented surface of soil and stone in the macropore structure is an important cause of SRMCM destruction.
电子版国际标准刊号	1993-0321
语种	英语
WOS记录号	WOS:000571194200014
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/50492]
专题	Journal of Mountain Science_Journal of Mountain Science-2020_Vol17 No.9
推荐引用方式 GB/T 7714	Liu, Yong,Sun, Shao-rui,Wei, Ji-hong,et al. Mechanical characteristics of soil-rock mixtures containing macropore structure based on 3D modeling technology[J]. JOURNAL OF MOUNTAIN SCIENCE,2020,17(9):2224-2240.
APA	Liu, Yong.,Sun, Shao-rui.,Wei, Ji-hong.,Song, Jing-lei.,Yu, Yong-xiang.,...&Zhang, Ji-xing.(2020).Mechanical characteristics of soil-rock mixtures containing macropore structure based on 3D modeling technology.JOURNAL OF MOUNTAIN SCIENCE,17(9),2224-2240.
MLA	Liu, Yong,et al."Mechanical characteristics of soil-rock mixtures containing macropore structure based on 3D modeling technology".JOURNAL OF MOUNTAIN SCIENCE 17.9(2020):2224-2240.